Planing-machine and attachment.



W. A. PERKINS.

PLANING MAGHINB AND ATTACHMENTS. APPLICATION FILED APE. 23,1910.

987,012,, Patented Mar. 14, 1911.

zflz'zkas .566; 172M??? 207 W, A.PERKINS. PLANING MACHINE ANDATTACHMENTS.

APPLIOATION FILED APR. 23, 1910.

Patented Mar. 14, 1911.

2 SHEETS-SHEET 2.

THE IICRRIS PETE 0., WASHINGTON, o. c,

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WILLIAM A. PERKINS, 0F BALTIMORE, MARYLAND, ASSIG-NOR OF ONE-HALF T0JOSEPH D. VIRDIN, 0F BALTIMORE, MARYLAND.

I'LANING-IVIAGHINE AND ATTACHMENT.

To all whom. it may concern:

Be it known that 1, WILLIAM A. PERKINs, a citizen of the United States,residing at Baltimore, Maryland, have invented certain new and usefulImprovements in Planing-Machines and Attachments, of which the followingis a specification.

This invention relates to lumber dressing machines or planers andparticularly to side head attachments for cutting strips of material andat the same time forming tongues and grooves in opposite side edges ofthe strips in relative positions so that the tongues may be fitted intothe grooves to produce a covering for various purposes. The attachmentsand the machine embodying the same are not confined to the production ofa finished strip for any specific use, as it is proposed to use thestrips for any purpose to which they may be applicable. The machineembodying the attachments, however, is advantageous in the formation ofceiling or ceiling strips, and in the subjoined description thisparticular class of strips may be referred to exclusively simply for thepurpose of demonstrat ing the practical operation of the machine and itsattachments, though itis obvious that no restriction is intended to beunderstood by such special reference.

The primary object of the invention is to economize in the production ofbuilding material both as to the quantity of lumber required and thetime necessary in completing the desired product.

The inventionconsists essentially of a side head embodying a circularsaw disposed between two cutters or cutting heads which may beconstructed either for the formation of edge grooves of for edgetongues, the saw having such diameter relatively to the cutters orcutting heads as to horizontally and evenly cut a strip of lumber orstock completely therethrough and at the same time form a tongue orgroove in the adjacent edge of each strip without requiring separateoperations to obtain the same result. It is preferred that two oftheside heads be used in each machine, one in advance of the other, andthat the machine have planing or dressing devices for finishing theupper and lower surfaces of the material or stock simultaneously withthe operation of separating the material or stock by the side heads sothat the strips when Specification of Letters Patent.

Application filed April 23, 1910.

Patented Mar. 114;, 1911. Serial No. 557,193.

issuing from the machine will be completed and ready for use. It is alsoproposed to employ a combined spreader and pressure device to engage thecut strips for the purpose of separating them and rendering the sawseffective in their operation and also for forcing the lower stripdownwardly in contact with a lower cutter or finishing head or planerattachment.

The invention also consists in the details of construction andarrangement of the several parts which will be more fully hereinafterdescribed and claimed.

In the drawings: Figure 1 is a top plan view of the planing machineshowing the improved side heads attached thereto and disposed inrelative positions for operation upon a strip of material or stock. Fig.2 is a side elevation of the machine as shown by Fig. 1 and particularlyillustrating the material. or stock as being formed into strips andissuing in finished condition from the machine. Fig. 3 is a detail sideelevation of one of the side head attachments, Fig. 41 is a partialsection through one of the side head attachments and particularlyshowing the manner of disposing the circular saw between the two cuttersor cutting heads. Fig. 5 is a detail perspective view of the combinedspreader and clamp.

The numeral 5 designates a planing or lumber dressing machine of anypreferred type, but at least embodying feed rollers 6, a top planer 7consisting of any well known form of rotary cutter, and a lower planeror cutter 8. Rising from suitable rotatable spindles at opposite sidesof the longitudinal center of the bed of the machine 5 are rotatablespindles 9 on which side head attachments 10 and 11 are operativelvdisposed and embodv features of the invention. Thefeed rollers 6,planers or cutters 7 and 8. and side head attachments 10 and 11 are alldriven by the usual belts and pullevs. as indicated by Fig. 2, and assaid mechanisms are well understood in the art to which they pertain itis unnecessary to specifically refer to the same.

Each side head attachment comprises a the post 12 and engagethescrew-threads 15, the lowercutter or cuttinghead l7 tightly Y bearingagainst the foot flange 14. Dowel pins 18 project upwardly from theflange l4 and extend through suitable openings in the cutters or cuttingheads 16 and 17, and between the two cutters or cutting heads a circularsaw 19 isinterposed and of materially greater diameter than the saidoutters or heads 16 and 17. The dowel pins 18 also extend through thesaw19 and hold the latter against movement on the post 12 independently ofthe cutters or cutting heads,.and after the said cutting heads and sawhave been assembled, as particularly shown by Fig. 4, they are securedby a ring 20 also engaging the screw-threads 15. In applying'the saw'19it is unnecessary to particularly prepare the same for disposal betweenthe cutters or cutting heads 16- and 17, as saws now found in the markethave a central arbor or spindle opening and other smaller openings toengage pins or studs for holding the saw in fixed position on the arboror spindle. The dowel pins 18 are so disposed as to engage the smalleropenings as at 2-1 in the saw, and by this means convenience inassemblage of the saw with relation to the cutters or cutting heads 16and 17 ensues. I

It will be understood that when the post 12, with the bushing 13 thereinis inserted 'overjone of the spindles 9 of the machine 5,

' a' tight frictional engagement will be set up soas to insure a regularrotation of the side head' attachment complete with the spindle 9. V

The invention also contemplates the use of the combined spreader andclamp attachment, as shown in detail by Fig. 5. This attachment consistsof a base member '22 having arms 23 rising from opposite ends thereofand longitudinally slotted as at 24 r to receive fastening devicescarried by the frame yoke 25 of the machlne ad acent to or over thelower planer or dresser 8, the entire attachment, as shown by Fig. 5,being vertically. adjustable to obtain the necessary clamping pressureon the work and also removable from the yoke 25, As shown in theaccompanying drawings the upright arms 23 are made separate from thebase member 22 and are L-shaped, being riveted or, otherwise rigidlysecured to said base member 22 as clearly shown in :Fig. 5. The

' attachment may be readily applied and adsaid strips spread asuflicient distance to prevent binding on the saws and ease theoperationofthe latter; The lower strip as out from the material or stockpasses under the base member 22 and is engaged by said base member andthe presser tongue 27 thereof and the lower side of the said strip isthereby firmly held down by said base member and presser tongue againstthe cutter or planer 8 which finishes or planes the under side of saidstrip, the'upper sideof the top strip or of the stock or material as itis fed to the side head attachments being dressed or planed by thecutter or planer 7 In the operation of the machine the stock or materialto be cut is fed inwardly over the end of the machine as indicated by A,Figs. 1 and 2, and passes through thefeeding rollers 6 under the cutteror planter 7 and is horizontally split or out by the side headattachments 10 and 11 and passes downwardly under the yoke 25, the'lowerstrip moving underthe base member 22 of the combined spreading andclamping attachment shown by Fig. 5 and engaged by the base member andthe tongue 27 thereof which holds the under side of, said lower strip inclose contact with the cutter or planer 8, as hereinbefore indicated.The upper strip passes between the arms 23 and both strips, through theoperation of the side head attachments 10 and 11, have their oppositeedges formed with tongues and grooves, the tongues beingregularlycproduced by one side head attachment in the adjacent edges ofthe strips as cut, and the grooves being formed by the other side headattachment in the edges of the strips nearest thereto. By means of. theattachments as explained, material or stock of various thicknesses maybe centrally cut in a horizontal plane and in forming ceiling thematerial or stock having a thickness of one inch may be cut to producestrips of onehalf inch thickness or even less, in accordance with theprimary thickness of the stock or material fed into the machine. A greatsaving in time and labor results by reason of the complete work on thestrips being performed'at one operation. In some instances it may benecessary to use only one side head attachment, and in such event themachine will work equally well.

Though thepreferred form of the side head attachment and combinedspreader and clamping or pressure means has been described, it will beunderstood that changes in-the proportions, dimensions and minor detailsof construction may be resorted to without departing from the spirit ofthe invention.

What is claimed is:

1. In a wood working. machine, the combination With a bed, saws mountedtherein arranged to divide a board horizontally,

and planing cutters arranged to act on opposite sides of the board, of acombined spreader and clamp comprising a base member adapted andarranged to clamp the lower section of the divided board, and aforwardly extended spreader tongue cooperating with the saws, slottedupright arms rigidly secured to the base member, a yoke secured to themachine bed and means for securing said slotted arms to said yoke withthe spreader tongue and base member in position for performing theirfunctions.

2. In a wood Working machine, the combination with a bed, saws mountedtherein arranged to divide a board horizontally, and planing cuttersarranged to act on opposite sides of the board, one on the upper surfacebefore it is divided and the other on the lowersurface after division,of a combined spreader and clamp comprising a base memher having alongitudinal forwardly extended spreader tongue cooperating with thesaws and a rearwardly extended presser tongue, the base member andrearwardly extended presser tongue cooperating with the'last mentionedplaning cutter, slotted upright arms rigidly secured to said basemember, a yoke secured to the machine bed, and means for securing saidslotted arms to said yoke with the spreader tongue, presser tongue andbase member in position for performing their functions.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

WILLIAM A. PERKINS.

WVitnesses:

ALBERT W, CLARK, D. M. WOLF.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. O.

